The data on the number of steps to reach one in Collatz sequence for Mersenne primes from the 1st to 45th (the last with confirmed index) became available for download from OEIS (A181777). The full sequence from the 1st to 49th Mersenne prime (the last known as of today) could be downloaded from our repository.

As we announced before, on April 21st, 2017 our “1003 Palindrome Generator”, using proprietary theoretical algorithm, generated 1620000 (one million six hundred twenty thousands) 19-digit delayed palindromes with 259-step delay before achieving the 119-digit palindrome, each of which was independently tested and confirmed its properties. Continue reading →